It could be used, but it wouldn't be worth routing in, I think. The way I have things in my route, taxi stuff is all done downtown, so either RNGing a taxi or bringing one over from downtown doesn't sound too great. On top of that, PCJ Playground gives me a good excuse to go to the roof of the building for Ocean Beach Chopper Checkpoint, as the double USJ kinda prevents me from doing either both USJs or the chopper checkpoint without going back up. Nice find, though.